document.write( "Question 58378This question is from textbook Applied College Algebra
\n" ); document.write( ": Find the maximum of P(x) = -x^2 + 8x + 1. \n" ); document.write( "
Algebra.Com's Answer #40053 by babynarah2007(12)\"\" \"About 
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Find the maximum of P(x) = -x^2 + 8x + 1.
\n" ); document.write( " In general quadratic fuction F(x)= ax^2 + bx + C is a parabola,
\n" ); document.write( " we need to find the line of symmetry
\n" ); document.write( " p(x)= -x^2 + 8x + 1
\n" ); document.write( " Note:(in this case, the graph will open down when the value of A is negative units or sign) A= -1 , b= 8 , c= 1
\n" ); document.write( "
\n" ); document.write( " the X coordinate of the vertex is given by (-b/2a)= -(+8)/2(-1)= 4
\n" ); document.write( " the y coordinate of the vertex is given by
\n" ); document.write( " p(-b/2a)or p(4)= -x^2+8x+1
\n" ); document.write( " = -(4)^2+8(4)+1
\n" ); document.write( " = -16 + 32 + 1
\n" ); document.write( " = 17
\n" ); document.write( " Ans. the maxium of P(X) is 17
\n" ); document.write( " Note; this kind of problem you can solve by Quadratic fuction Form or Symmetry Form or Factor Form.
\n" ); document.write( " Best luck with your home work
\n" ); document.write( " Honestly solved by babynarah2007@yahoo.com \n" ); document.write( "
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